
I'm so happy but it's been ages since i read it I don't remember anything of the second couple, ¿who are they? ¿who is the chihuaha?

i really recommend rereading bc my summary won't do it justice. their story is so beautiful. anyway ein(buzzcut) and diesel(long blonde hair) met in berlin when ein was an undercover cop. diesel was yanek's lover but yanek was part of a gang and ein was undercover so he can take down yanek.
anyway ein starts falling for diesel, diesel finds out that ein is a cop but still diesel doesn't tell yanek which shows that he kinda cares for ein. and then ein and diesel sleep together once and yanek finds out and then decides he's gonna kill them both bc ein is a cop and diesel betrayed him, shit goes down and then ein kills yanek bc he was gonna kill diesel.
then ein and diesel leave berlin and go to korea because ein has to escape the gang that's after him bc ein killed yanek who was the gang leader's son. anyway ein and diesel are introduced when the first couple minsuk and bexan meet them in korea. now if you remember ein gets discovered in korea by the gang and gets attacked, so then ein tells diesel that diesel has to go to siberia with minsuk and bexan bc that's the safest place for diesel and that he needs to get away from ein to be safe. diesel said he'll come back for ein after the winter is over, and now this new side story shows that now winter is over and diesel kept his promise and is coming back to get ein.
the chihuahua is called pablo i think, unless it's a different chihuahua. anyway pablo was just a popular dog on instagram who turned out to be a werewolf like bexan and diesel, and they met and bexan became a dog model for pablo's dog clothing brand.
again i really recommend rereading the story is so well written and the art is beautiful. hope this helps :))))

I want spoilers please, is the demon in love with mc?

No spoiler but my pov
To me it seems like the egg use mc's mom dark energy to hunt mc. To make his life as miserable as possible and mc seems to realized that??? I mean, mc was like if he doesn't get his emotion in check demon guy wil- then later on, mom's silhouette appeared behind him and he gets all these kind of emotion bursting forth.
Egg demon is a demon, he doesn't understand love. He just doesn't. Love is for human being only(I mean if there is love then hate too so I feel like other being- let's not touch this subject.
Anyway, mc seems to love, like, depend, resign, regret on the demon egg. If he were to be like f it all, he'll be alone. He only have egg demon and he feel very attracted to him(sexually, emotionally). But after his mom got killed, he realized what a demon represent even if he(egg demon) is very "truthful" to him. Its like forbidden, tocix and just impossible for this relationship to work.
But at the same time, to me, it seems like the inability to love is an emotion that is the downside of this mind reading demon. Since he can read minds, there has to be a downside, which seems to be love. If other demon can come and create contract w human, then they must have an emotion strong enough to temp them, especially if these demon stay till contractor died. It's a yin yang thing to me.
I forgot what I was trying to say. I give up.
There is a sequel, i hope someone will translate it soon